Psychiatric patients visiting the Emergency Department (ED) often require ‘medical clearance’. We aim to review patient work-up in the ED to facilitate the management of these patients.

- To identify common demographic variables, diagnoses and mental health legislative status of patients presenting to the ED requiring psychiatric admission - To assess whether patients underwent a medical work-up in the ED, and what investigations were carried out - To produce a hospital proforma for the management of psychiatric patients presenting at the ED

Data on adult psychiatric patients visiting the ED over a six month period was collected retrospectively, which was then analysed accordingly.

473 patient admissions were reviewed. 32.8% were admitted to a non-psychiatric specialty before being accepted to psychiatry, with the most common reasons being due to overdose (30.3%), alcohol-related problems (19.4%), and medical complaints (18.7%). 63.2% of all patients were investigated in the ED, including 23.5% undergoing CT Brain imaging. The majority had a final diagnosis falling under F10-19 (30.2%) and F30-39 (30.9%) chapter categories of the ICD-10, with the former having the highest absolute number of patients undergoing testing in the ED. The F20-29 group (13.7%) was highest in total patients investigated (75.4%), CT brain imaging (56.9%), and rate of involuntary admissions (33.8%), suggesting they are the most resource intensive group.

Patients with acute mental disorders present significant challenges to emergency physicians. Staff education and an inter-departmentally agreed upon proforma, taking into account the results of this study, may facilitate management of these patients within the ED.